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Two pressures are measured for a blood pressure reading 1  : Systolic blood pressure is a measure of blood pressure while the heart is beating. 2  Diastolic pressure is a measure of blood pressure while the heart is relaxed.
It carries nutrients and oxygen to all of your cells while removing carbon dioxide and other wastes from the cells. Distinguish between systolic and diastolic blood pressure. Systolic blood pressure is the pressure in the arteries when the ventricles are contracting.